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Biology, 21.06.2019 20:30
Explain how fossils scientists make discoveries about the lives of organisms and about how environments have changed over time. plz hurry up it time
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Biology, 22.06.2019 11:30
Graded assignment lab report answer the questions below. which combinations of substances resulted in a chemical change? for each metal that participated in a chemical change, write the type of metal it is, based on your examination of the periodic table. were there any metallic compounds that did not react with either the acid or the base? write the type of metal, based on your examination of the periodic table. make a general statement about the reactivity of the metals in this experiment.
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Biology, 22.06.2019 19:00
Question 1 which of the following allows cells to take in fluids? a. phagocytosis b. pinocytosis c. exocytosis d. receptor-mediated endocytosis question 2 molecules move along their concentration gradient (from areas of high concentration to low concentration) using active transport mechanisms. a. true b. false question 3 which of the following powers active transport (ie. provides the energy for)? a. glucose b. transport proteins c. atp d. phospholipids question 4 what type of lipid is a major component of the plasma membrane? a. cholesterol b. phosopholipids c. proteins d. triglycerides
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Biology, 22.06.2019 21:40
According to the rna world hypothesis, rna acted as the genetic material and catalyzed reactions in ancient cells. what conclusion can you draw from this? a. this implies that dna and proteins aren't essential in cells today. b. this implies that rna can catalyze any chemical reaction that enzymes catalyze. c. this implies that if a cell has a problem with its dna, its rna can compensate for the damaged dna. d. this implies that dna and proteins evolved after rna.
Answers: 2
Mathematics, 21.05.2020 05:09
English, 21.05.2020 05:09
Geography, 21.05.2020 05:09
English, 21.05.2020 05:09
Mathematics, 21.05.2020 05:09
History, 21.05.2020 05:09
Mathematics, 21.05.2020 05:09
History, 21.05.2020 05:09
Mathematics, 21.05.2020 05:09
Mathematics, 21.05.2020 05:09